Home / 18,869.18-28,183.18-17,087.68

Finding the Fourth Proportional to 18,869.18, 28,183.18 and 17,087.68

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Solution

The fourth proportional to 18,869.18, 28,183.18 and 17,087.68 is: 25,522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.18 : 28,183.18 = 17,087.68 : x
  2. Step 2: Convert to fraction form
    18,869.18/28,183.18 = 17,087.68/x
  3. Step 3: Cross multiply
    18,869.18x = 28,183.18 × 17,087.68
  4. Step 4: Simplify right side
    18,869.18x = 481,585,161.22
  5. Step 5: Solve for x
    x = 481,585,161.22/18,869.18
  6. Step 6: Final answer
    x = 25,522.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.